3com S7906E Guide De Référence

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order  order-value: Specifies the order of the ACL in the group-policy list, where order-value  has an 
effective range of 1 to (the largest order value in the existing group-policy list + 1), but the value range 
should not include the original order value of the ACL in the group-policy list. If you have assigned an 
order-value to a certain ACL, do not specify the same order-value for another ACL; otherwise the 
system will give error information. If you do not specify an order-value, the order value of the ACL will 
remain the same in the group-policy list.  
Description 
Use the spt-switch-threshold infinity command to configure disabling the SPT switchover.  
Use the undo spt-switch-threshold command to restore the default configuration. 
By default, the device switches to the SPT immediately after it receives the first multicast packet.  
Note that:  
To adjust the order of an existing ACL in the group-policy list, you can use the acl-number 
argument to specify this ACL and set its order-value. This will insert the ACL to the position of 
order-value in the group-policy list. The order of the other existing ACLs in the group-policy list will 
remain unchanged.  
To use an ACL that does not exist in the group-policy list, you can use the acl-number argument to 
specify an ACL and set its order-value. This will insert the ACL to the position of order-value in the 
group-policy list. If you do not include the order order-value option in your command, the ACL will 
be appended to the end of the group-policy list.  
If you use this command multiple times on the same multicast group, the first traffic rate 
configuration matched in sequence will take effect.  
For an S7900E series Ethernet switch, once a multicast forwarding entry is created, subsequent 
multicast data will not be encapsulated in register messages before being forwarded even if a 
register outgoing interface is available. Therefore, to avoid forwarding failure, do not use 
spt-switch-threshold infinity command on a switch that may become an RP (namely, a static RP 
or a C-RP). 
Examples 
# Disable SPT switchover on a switch that will never become an RP.  
<Sysname> system-view 
[Sysname] pim 
[Sysname-pim] spt-switch-threshold infinity 
ssm-policy (PIM view) 
Syntax 
ssm-policy acl-number 
undo ssm-policy 
View 
Public instance PIM view, VPN instance PIM view